CVE-2012-1836

high
Published 2012-03-22 · Modified 2026-04-29
CVSS v3
CVSS v2
7.5
VIR risk
7.5

Description

Heap-based buffer overflow in dns.cpp in InspIRCd 2.0.5 might allow remote attackers to execute arbitrary code via a crafted DNS query that uses compression.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2012-1836

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://github.com/inspircd/inspircd/commit/fe7dbd2c104c37f6f3af7d9f1646a3c332aea4a4

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — http://www.kb.cert.org/vuls/id/212651

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed2.0.5-0.1
debian debianbullseyefixed2.0.5-0.1
debian debiansidfixed2.0.5-0.1
debian debiantrixiefixed2.0.5-0.1

Application impact

VendorProductVersionsFixed
inspircdinspircd2.0.5

References

CWEs

CWE-119

Verify integrity in audit chain (admin only). AS-IS.